3/8" Hand Pipe Tap Set HSS Right-Hand 2pc, 12mm Shank - TECWERK

The combination of HSS construction, a 12 mm shank and compatibility with Whitworth pipe thread G 3/8 in (19 tpi) ensures robust, repeatable thread cutting in workshop environments; order the TECWERK hand tap set directly via Metav Werkzeuge or consult their specialists for application advice.

Hand tap set DIN 5157 G 3/8 in HSS ISO 228 — TECWERK — right-hand cutting, 19 tpi

Hand tap set DIN 5157 G 3/8 in HSS ISO 228 — TECWERK provides a compact solution for creating parallel Whitworth pipe threads to ISO 228 in a variety of steel grades and typical workshop materials

• HSS material for long tool life
• Whitworth pipe thread G (parallel)
• Suitable for through and blind holes
• 19 tpi for G 3/8" standard

Reliable performance for workshop threading

These HSS hand taps deliver consistent cutting performance where standard pipe threads are required. Designed to create Whitworth pipe thread G profiles to ISO 228, the set comprises a pilot and a finish cutter for staged cutting, which reduces load on the operator and the machine. The two-stage approach minimises the risk of chatter and deformation and is particularly useful when machining carbon and alloy steels. The right-hand cutting geometry promotes reliable chip formation and evacuation, so thread quality is improved without extra rework.

Practical compatibility and machining guidance

The cutter duo is specified for steels up to approx. 900 N/mm², making the set suitable for many common workshop steels. The taps are matched to G 3/8 in nominal size with 19 tpi, which complies with the Whitworth parallel pipe-thread standard; this ensures interchangeability with standard fittings. For blind holes, reduced cutting depth techniques and appropriate lubricant selection help prevent chip packing. For through holes, the finish cutter normalises thread flank geometry, ensuring a better sealing surface where required.

Design features that support daily use

A 12 mm shank provides secure clamping in conventional tap holders and T‑handles, while the HSS substrate delivers wear resistance across repeated cycles. The set’s right-hand cutting direction suits standard turning and drilling setups. Where higher production demands exist, the staged tapping reduces cycle times by lowering the cutting forces on the finish pass; this is a practical efficiency advantage in both maintenance and small-batch production contexts.

Why choose this set via Metav Werkzeuge

Selecting this TECWERK set through Metav Werkzeuge offers the advantages of a tested supply chain and specialist advice. Metav’s emphasis on precision democratisation, a broad catalogue and dependable logistics supports small workshops and industry buyers alike. With established quality controls and a large customer base, Metav ensures access to consistent tooling and can advise on lubricant choice, tapping speed and fixture recommendations.

For tailored ordering or application advice on the TECWERK HSS G 3/8 in hand tap set, contact Metav Werkzeuge’s specialists for immediate procurement and technical guidance.

Technical data

• Article number: 2000867094NW
• Manufacturer: TECWERK
• Designation: Hand tap set G 3/8 in HSS DIN 5157 ISO 228

Facts

• Shank diameter: 12 mm
• Thread standard: ISO 228 (Whitworth, parallel G)
• Thread size: G 3/8 in
• Threads per inch: 19 tpi
• Material strength suitability: up to approx. 900 N/mm²
• Set composition: 2-piece (pilot and finish)

Special features

• Cutting material: HSS
• Cutting direction: right-hand cutting
• Application: through holes and blind holes
• Standard: DIN 5157

FAQ

What materials can be machined with this hand tap set?
The TECWERK hand tap set is suitable for machining common workshop steels up to approximately 900 N/mm²; the HSS construction supports durable cutting in carbon and many alloyed steels.

Does the set include both a pilot and a finishing tap?
Yes, the set consists of two taps — a starter (pilot) and a finish cutter — to stage the thread cutting and improve surface quality.

Which thread standard and size does this set produce?
The taps are produced to ISO 228 for Whitworth parallel pipe threads, nominally G 3/8 in with 19 tpi, matching standard G-thread fittings.

Can the taps be used in blind holes as well as through holes?
The TECWERK set is designed for both through and blind hole applications; using suitable lubrication and correct tapping depth improves performance in blind holes.

What clamping or holder size is recommended?
A 12 mm shank enables secure clamping in standard tap holders and conventional T‑handles suitable for manual or low-speed machine tapping.

TECWERK: Manufacturer / Responsible: NORDWEST Handel AG, Robert-Schuman-Straße 17, 44263 Dortmund